Metamorphic Rock (Specifically A Rock Composed Of Minerals)

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

Aventurine (Green Quartz)

Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)

Basalt with Quartz/Zeolite Inclusions

Porphyritic Basalt (SiO2 with Aluminosilicates)

Shungite

Non-crystalline carbon (similar to anthracite coal or meta-anthracite)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Chalcedony Geode

Chalcedony (SiO2) within a geode structure

Olivine/Peridot

Magnesium Iron Silicate (Mg,Fe)2SiO4

Conglomerate

Clastic sedimentary rock (Conglomerate)

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated Iron Oxide)

Jasper (Multi-color Chert)

Silicon dioxide (SiO2)

Black Tourmaline (Schorl)

Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4

Ironstone (likely siderite or goethite-rich siltstone)

Ferruginous Siltstone

Turquoise in Matrix

CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)

Rose Quartz

Silicon dioxide with traces of titanium, iron, or manganese (SiO2)

Sedimentary Breccia

Breccia (Clastic Sedimentary Rock)

Dragon Blood Jasper (Epidote with Piedmontite or Quartz)

Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz Sphere

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Granite

Phaneritic plutonic rock (composed mainly of SiO2, Al2O3, K2O, and Na2O)

Granite

Intrusive Felsic Igneous Rock

Granite

Phaneritic Igneous Rock (Granite)

Granite

Phaneritic Granocrystalline Igneous Rock

Turquoise in Matrix

Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)

Veined Quartz

SiO2 (Silicon Dioxide)

Milky Quartz (Druzy Geode fragment)

Silicon Dioxide (SiO2)

Schist

Mica Schist

Banded Gneiss

Gneiss

Green Moonstone (Garnierite)

Nickel-bearing Magnesium Silicate (often a mix of Serpentine and Talc/Chlorite groups)

Granite

Granite (compositional mixture of Quartz, Feldspar, and Mica)

Granite

Phaneritic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)

Quartz (Milky/Crystal Variety)

Silicon Dioxide (SiO2)

Gold Nugget

Native Gold (Au)

Amazonite

Potassium Feldspar (KAlSi3O8)

Quartzite (Milky Quartz pebble)

Silicon Dioxide (SiO2)

Amazonite

KAlSi3O8 (Potassium Aluminum Silicate) - a variety of Microcline Feldspar

Diorite

Phaneritic Intermediate Igneous Rock

Red Granite

Phaneritic Felsic Igneous Rock

Granite

Intrusive Igneous Rock (composed primarily of Quartz: SiO2, Feldspar: KAlSi3O8, and Mica: KAl2(AlSi3O10)(OH)2)

Quartz (Variety of Rough Mineral Specimens)

Silicon Dioxide (SiO2)

Epidote (Unakite-related)

Epidote (Ca2(Al,Fe)3(SiO4)3(OH))